Shangchai G Series Engine Nameplate And Specifications

Dec. 18, 2017

This is the engine nameplate, parameters and specification part of Shangchai G series engine operation and maintenance.

2.3 Engine Nameplate

The engine nameplate indicates the main technical data and information: engine model, order number, serial number, date of production, rated power and rated speed, which are the major basis for you to purchase service parts and for SDEC to conduct after-sale technical service. We hope you to put the information and data into the daily work record of your engine or equipment for later repair and reflection of quality problems, That is helpful to the correct settlement of your problems. The nameplate locates at the side of the gear housing. Protect it from being damaged.

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MODEL

SER. NO.

ORD. NO.

RATED POWER/SPEED

PRODUCT NAME

MAX POWER/SPEED

TYPE-APPROVAL NO.

NET WT

MAX ALT.

EXCUTED STANDERD

DATE

EMISSION LIM

LICENCE NO.

MADE IN SHANGHAI DIESEL ENGINE CO., LETD. CHINA

Notice: Do not change the nameplate without our permission!

2.4 Specifications and Parameters

2.4.1 Specifications

Engine model		SC25G690D2		SC27G830D2
Type		Twelve cylinders, V type, water cooled, four stroke, direct injection
Aspiration type		Turbocharged and intercooled (air - to- air)
Bore/mm		135		135
Stroke/mm		150		155
Displacement/L		25.8		26.6
Compression ratio		16:1		16：1
Starting temperature/'C		≥-5 (Without starting aid)		≥-5 (Without starting aid)
Crankshaft rotation (facing flywheel		Counterclockwise		Counterclockwise
Firing order (viewed from the front end)		1-12-5-8-3-10-6-7-2-11-4-9 (Left side cylinders: 1,2,3,4,5,6; right side cylinders: 7,8,9,10,11.12)
Rated point	Power/kW	459	565
	Speed/(r/min)	1 500	1,500
Overload	Power/kW	505土2%	1 500
	Speed/(r/min	1,500	1 500
Oil consumption/(g/kWh		≤0.4 (after running in)	≤0.4 (after running in}
Emissions		China Stage II	China Stage lI
Starting mode		Starting mode	Starting mode
Altitude/m		2,000	2,000
Net weigh/kg .		2,200 ± 50 (excluding radiator)	2,200±50 (excluding radiator)
Dimensions		Length/mm	1,912		1,930
		Width/mm	1,220		1,220
		Height/mm	1,872		1,872

Note: 1) The listed engine performance data are those of the base engines, which are obtained at the standard test conditions: ambient temperature is 25'C, relative humidity is 300h and barometric pressure is 100 kPa. The data of a specific engine refer to the nameplate of the engine.

2) When the engine operates on over 2.000 meters above the seal level, its power output will decrease and its performance become bad. So it is required to reduce the engine power output when it runs at altitude higher than 2,000 meter. It is not recommended to run the engine over 4,000 meters above the sea level.

2.4.2 Parameters

Engine model

SC25G69D2

SC27G830D2

Exhaust temperature (before turbine)/℃

≤700

Oil temperature in oil pan/℃

Max. allowable

115

Operation range

90-110

Pressure of oil in main gallery/MPa

@rated speed

≥0.25

@idle

≥0.1.(when oil temperature ≥75℃)

Oil pan capacity

About 42

Lubricating system capacity/L

About 65

Minimum coolant temperature (inlet) /℃

Maximum coolant temperature (outlet)/℃

100

Proper operational water temperature rang/℃

75-96

Electronic governor performance

Min. Stable idle speed/(r/min)

900

Fluctuation at Min. Stable idle speed /(r/min)

±30

Sudden unloading at one-hour power condition:

Transit governing rate/%

Stable governing rate /%

Stable speed recovering time/s

≤8

≤3

Battery

Min. Recommended battery capacity/Ah

195

Battery current of at -18℃ for cold starting /CCA

1,250

Voltage/V

Starting motor

Voltage /V

Power /KW

Alternator

Voltage/V

Current /A

Rated power/A

1.5

* The capacity of a battery should be properly increase for a starting with higher requirement.

2.4.3 Application Requirement

The table below gives requirements on engine operational data and maximum power output because ambient condition has a great effect on the operation of a turbocharged engine with air-to air inter cooler. It is required to choose proper intercooler, radiator, muffler and connecting pipeline according to the requirements listed in the table, maintain the air filter timely, and control engine load to avoid overloaded operation that will lead to damage to the engine.

Ambient Temperature/℃	Speed r/min	Max. Power allowance/kw	Inter-cooler outlet temperature	Inter-cooler pressure drop/KPA	Engine outlet coolant temperature	Oil temp (in oil pan)/℃	Intake resistance/kPa	Exhaust back pressure/kPa
≤30	1,500	610	≤50	≤6	<100	≤115	≤3	≤6
40	1,500	585	≤60	≤6	<100	≤115	≤3	≤6
50	1,500	550	≤70	≤6	<100	≤115	≤3	≤6